1
1. False
2. True
3. True
4. False
5. False
6. True
7. False
2
1. mustn't
2. must
3. must
4. mustn't
5. mustn't
6. must
3
1. shouldn't
2. should
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Answers & Comments
1
1. False
2. True
3. True
4. False
5. False
6. True
7. False
2
1. mustn't
2. must
3. must
4. mustn't
5. mustn't
6. must
3
1. shouldn't
2. should